Insmed (INSM) director gifts shares and details family holdings

Rhea-AI Filing Summary

Insmed Inc director Melvin Sharoky reported several bona fide gifts of common stock dated February 25, 2026. He gifted 1,072 shares from his direct holdings and 243 shares to each of four UTMA custodial accounts for family members. After these gifts, he continued to hold 242,876 shares directly, while indirect holdings included shares in custodial UTMA accounts, 5,000 shares held through Padonia, LLC, and 6,847 shares held by his spouse.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

SHAROKY MELVIN MD

(Last) (First) (Middle)

700 US HIGHWAY 202/206

(Street)

BRIDGEWATER NJ 08807

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
INSMED Inc [ INSM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/25/2026		G		1,072	D	$0	242,876	D
Common Stock	02/25/2026		G		243	A	$0	5,423	I	By Melvin Sharoky C/F Nolan M. Wink UTMA/FL(1)
Common Stock	02/25/2026		G		243	A	$0	3,724	I	By Melvin Sharoky C/F Tulia L. Sharoky UTMA/FL(2)
Common Stock	02/25/2026		G		243	A	$0	5,007	I	By Melvin Sharoky C/F Sophie C. Wink UTMA/FL(3)
Common Stock	02/25/2026		G		243	A	$0	819	I	By Melvin Sharoky C/F Adler J. Wink UTMA/FL(4)
Common Stock								5,000	I	By Padonia, LLC(5)
Common Stock								6,847	I	By spouse

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The Reporting Person is the custodian of Melvin Sharoky C/F Nolan M. Wink UTMA/FL.

2. The Reporting Person is the custodian of Melvin Sharoky C/F Tulia L. Sharoky UTMA/FL.

3. The Reporting Person is the custodian of Melvin Sharoky C/F Sophie C. Wink UTMA/FL.

4. The Reporting Person is the custodian of Melvin Sharoky C/F Adler J. Wink UTMA/FL.

5. The Reporting Person is the managing member of Padonia, LLC.

Remarks:

	/s/ Melvin Sharoky, M.D, by Michael A. Smith as Attorney-in-fact	02/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider activity did INSM director Melvin Sharoky report?

INSM director Melvin Sharoky reported bona fide gifts of Insmed common stock to family-related accounts. These Form 4 transactions were coded as gifts, not open-market sales, and involved transfers from both his direct holdings and custodial accounts he oversees for family members.

How many INSM shares did Melvin Sharoky gift on February 25, 2026?

On February 25, 2026, Melvin Sharoky gifted 1,072 INSM common shares from his direct holdings and 243 shares to each of four UTMA custodial accounts. All transactions were reported as bona fide gifts at a per-share price of zero dollars.

How many Insmed shares does Melvin Sharoky hold directly after the gifts?

After the reported gifts, Melvin Sharoky held 242,876 Insmed common shares directly. This figure reflects his remaining direct ownership position as of the transaction date, separate from additional indirect holdings through family custodial accounts, Padonia LLC, and shares held by his spouse.

What indirect INSM share holdings are associated with Melvin Sharoky?

Indirect INSM holdings associated with Melvin Sharoky include custodial UTMA accounts for several family members, 5,000 shares held through Padonia LLC where he is managing member, and 6,847 shares held by his spouse, all reported as indirect ownership positions in the filing.

Were the INSM insider transactions gifts or market sales?

The INSM insider transactions were reported as bona fide gifts, coded “G” on Form 4. They involved transfers of common stock at a reported price of zero dollars per share, rather than open-market purchases or sales for cash consideration on a securities exchange.